The Center for Advanced Studies in Photonics Research (CASPR) fosters advanced photonics research and technology development in the areas of optical communications, optical sensing and devices, nanophotonics, biophotonics, and quantum optics in order to benefit government, industry and scientific progress.

Recent Submissions

  • Large Third-Order Nonlinearities in Atomic Layer Deposition Grown Nitrogen-Enriched TiO₂ Nanoscale Films 

    Kuis, Robinson; Gougousi, Theodosia; Basaldua, Isaac; Burkins, Paul; Kropp, Jaron A.; Johnson, Anthony M. (IEEE, 2020-08)
    Nonlinear refractive index, n₂, values as high as 1±.1x10⁻⁹ cm² /W were measured in atomic layer deposition (ALD) grown TiO₂ nanoscale films, using femtosecond thermally managed Z-scan. The several order of magnitude ...
  • Engineering of Large Third-Order Nonlinearities in Atomic Layer Deposition Grown Nitrogen-Enriched TiO₂ 

    Kuis, Robinson; Gougousi, Theodosia; Basaldua, Isaac; Burkins, Paul; Kropp, Jaron A.; Johnson, Anthony M. (ACS Publications, 2019-10-17)
    The third-order nonlinear optical properties of Nitrogen-enriched TiO₂ films deposited by Atomic Layer Deposition (ALD) at a temperature between 100 – 300°C on quartz substrates were studied using thermally managed Z-scan ...
  • Where Does Work End and Home Life Begin? 

    Berge, Zane L.; Bichy, Cassie; Grayson, Candice; Johnson, Anthony; Macadoff, Stephen; Nee, Kathryn (IGI Global Disseminator of Knowledge, 2009)
    Many years ago, it was a commonly held belief that technology would improve industries and service professions, which means that people could work shorter hours and their employers would make just as much money. Essentially, ...
  • Simulation of the Evolution of Information Content in Transcription Factor Binding Sites Using a Parallelized Genetic Algorithm 

    Cornish, Joseph; Forder, Robert; Erill, Ivan; Gobbert, Matthias K. (2011-07-30)
    The analysis of transcription factor binding motifs may aid in understanding the process by which transcription factors recognize their binding sites. We wish to investigate the likelihood that transcription factors use ...
  • Rapid recombinant protein expression in cell-free extracts from human blood 

    Burgenson, David; Gurramkonda, Chandrasekhar; Pilli, Manohar; Ge, Xudong; Andar, Abhay; Kostov, Yordan; Tolosa, Leah; Rao, Govind (Nature, 2018-06-22)
    Several groups have recently reported on the utility of cell-free expression systems to make therapeutic proteins, most of them employing CHO or E. coli cell-free extracts. Here, we propose an alternative that uses human ...
  • Stability of cnoidal wave frequency combs in microresonators 

    Qi, Zhen; Wang, Shaokang; Jaramillo-Villegas, Jose A.; Qi, Minghao; Weiner, Andrew M.; D’Aguanno, Giuseppe; Menyuk, Curtis R. (OSA Publishing, 2018)
    We determine the regions in the parameter space of microresonators where cnoidal waves (Turing rolls) are stable. Solitons are included as a special limit. We identify conditions to efficiently obtain broadband frequency combs.